im no db expert/admin ... but to my knowledge, oracle gives you stored procedures, and active/active if you deploy with RAC. what exactly do you mean by replication? b/c i have done a lot of master/slave replication with mysql, and it works very well. i have had masters die and through the use of transaction logs been able to totally recover and convert a slave to master in a matter of hours (40gb database). if ha is important and you can't have any downtime, you will need to pony up the cash for a 2 node RAC deployment. if you are ok with the time needed to replay transaction logs (typically in the hours - on big db's) you can use an active/passive cluster. of course the other things that might be of interest - with oracle you get pretty gui's, polished reporting etc. it is also my understanding that companies like yahoo, slashdot and others of that size - use mysql for tb size databases with no problems. so it is very capable of performing enterprise db functions. if you find anything concrete - post it back - i think that would be interesting to see. thanks! Eric F Crist wrote: > R.E.P.L.I.C.A.T.I.O.N. > > > On Sep 26, 2008, at 6:45 PM, Mike Miller wrote: > > >> We have a lot of data -- apparently about 9,000 tables in an RDBMS. >> It's >> in Oracle now. As a fan of open source solutions, I would prefer to >> use >> MySQL or other open source RDBMS, but at what cost? Before I even >> consider moving data to MySQL from Oracle, I want to know what >> Oracle can >> do that MySQL (or other FOSS product) cannot do. Have any of you >> studied >> this or do you know of any reasonably serious comparative research or >> reviews? Thanks. >> >> Mike >> >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> tclug-list at mn-linux.org >> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >> > > --- > Eric Crist > > > > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list >